5.0 GXI block identification

[further]

So i've determined that my new to me Chap has had its block replaced sometime after 2014. I'd like to figure out some more info and hoping i can do that by ID'ing the block... Assuming the block would have some numbers stamped into other than the "878" i've already found? Anyone have any ideas on where I can look to find serial # or similar?

 

[alldodge]

Should be looking for a 7 digit cast number. Block numbers should be behind and below the distributer.
Have a look here for locations and how to find the numbers

http://www.mortec.com/

 

[Scott Danforth]

Behind the starboard head is the casting number

 

[further]

Thanks!

 

[further]

So visited the boat today and tried looking around for the cast number. Only thing I found was a six digit letter/number combo "MM7641" couldn't find anything else - this was also near the "GM - Made in Mexico" stamp. Can anyone decipher this? Having my doubts that this is anything... Should be 7 numbers - can't find anything else; although there's lots of stuff in the way.
Thanks for your help!

 

[Bondo]

Ayuh,.... That's a rebuider's number,.... My Guess is Michigan Motors,...

As Scott said, yer lookin' for a cast in-place number on the block flange aft of the port-side head,....

 

[further]

Ayuh,.... That's a rebuider's number,.... My Guess is Michigan Motors,...

As Scott said, yer lookin' for a cast in-place number on the block flange aft of the port-side head,....

Freakin genius Bondo! Great guess! Called Michigan Motors and it is their block. Direct 5.0 replacement purchased in 2016! Looks like I bought a boat with a relatively fresh motor! Now just hoping all was installed proper. Waiting on some spring to sea trial....